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C++ Dynamic Shared Library on Linux
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No. This is standard Unix (Linux) dynamic linking. A dynamic library has the extension ".so" (Shared Object) and is linked with the executable (main in this case) at load time -- every time main is loaded. Static linking occurs at link time and u...
How Python web frameworks, WSGI and CGI fit together
...nment and invokes the script through the CGI protocol. This is a standard Unix Fork/Exec situation -- the CGI subprocess inherits an OS environment including the socket and stdout. The CGI subprocess writes a response, which goes back to Apache; Apache sends this response to the browser.
CGI is p...
What's the rationale for null terminated strings?
..."; is valid C (not C++) and
won't put a final zero in a.
coherent with the unix point of view "everything is file", including
"files" that have no intrinsic length
like stdin, stdout. You should remember that open read and write primitives are implemented
at a very low level. They are not library ca...
How do you validate a URL with a regular expression in Python?
...tloc to always be "www.somename.somedomain"? Do you want the path to look unix-like? Or windows-like? Do you want to remove the query string? Or preserve it?
These are not RFC-specified validations. These are validations unique to your application.
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Is SHA-1 secure for password storage?
...he system for not letting an attacker build an offline attack. That's what Unix systems do: the hashed passwords, which used to be in the world-readable /etc/password file, are now in the /etc/shadow file which is protected against read access, except by a few privileged applications. The assumption...
Various ways to remove local Git changes
...ed]
#create gitignore file
touch .gitignore // create the file in mac or unix users
sample .gitignore contents:
.project
*.py
.settings
Reference link to GIT cheat sheet: https://services.github.com/on-demand/downloads/github-git-cheat-sheet.pdf
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How to read a large file - line by line?
...', or '\r\n'.
EDIT - To specify universal newline support:
Python 2 on Unix - open(file_path, mode='rU') - required [thanks @Dave]
Python 2 on Windows - open(file_path, mode='rU') - optional
Python 3 - open(file_path, newline=None) - optional
The newline parameter is only supported in Python 3...
Shared-memory objects in multiprocessing
...operating system that uses copy-on-write fork() semantics (like any common unix), then as long as you never alter your data structure it will be available to all child processes without taking up additional memory. You will not have to do anything special (except make absolutely sure you don't alte...
Why do I need 'b' to encode a string with Base64?
...gt;
There are two problems I planted:
If I tried to send that email in Unix, the email would send as soon as the \x04 character was read, because that is ASCII for END-OF-TRANSMISSION (Ctrl-D), so the remaining data would be left out of the transmission.
Also, while Python is smart enough to esc...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...only on it to decide that you can use wchar_t this way because, while most unix platforms define it, Windows does not even though Windows uses the same wchar_t locale in all locales.
The reason Windows doesn't define __STDC_ISO_10646__ is because Windows use UTF-16 as its wchar_t encoding, and beca...